23947883280 has 140 divisors (see below), whose sum is σ = 83480257740. Its totient is φ = 6386086656.

The previous prime is 23947883273. The next prime is 23947883327. The reversal of 23947883280 is 8238874932.

23947883280 is a `hidden beast` number, since 239 + 4 + 7 + 88 + 328 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14010983424 + 9936899856 = 118368^2 + 99684^2 .

It is a super-2 number, since 2×23947883280² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 146995 + ... + 263634.

Almost surely, 2^23947883280 is an apocalyptic number.

23947883280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23947883280 is an abundant number, since it is smaller than the sum of its proper divisors (59532374460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23947883280 is an equidigital number, since it uses as much as digits as its factorization.

23947883280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410660 (or 410639 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 23947883280 in words is "twenty-three billion, nine hundred forty-seven million, eight hundred eighty-three thousand, two hundred eighty".